About 3 weeks ago I got up to go to uni and felt sick, I felt sick except when i took the train into town. Once i got to town I was walking to uni and started feeling sick again. While at uni waiting for class to start I was standing outside class for about 5 to 10mins waiting for the tutor to come when i started to feel a gradual on set of heaviness come over me, it got worse and worse I started to sweat and could feel my heart racing and i started to freak out. I lied down on a couch and i started to feel better but could still feel my heart racing which started to come right eventually. I had blood tests taken and all readings were normal, I also had an ECG taken while lying down with a normal reading, Doctors checked my chest and said it sounded fine. This morning I started to have the heavy feelings again, i didnt feel sick though. It wasent as bad as i went and sat down although my heart was pumping hard again, and felt a little bit sweaty.
Im wondering if this is Anxiety of some sort and could the heaviness be related to anxiety, I have been worrying about it since it first happened, but have been feeling better every week since. The first one seemed to come on suddenly, and I was feeling good this morning when it came on again, now i feel like im back to square one again. Can anyone help me with this or have any ideas on what it could be? Thanks.